Cross-section constrained top quark mass measurement from dilepton events at the Tevatron

2008
We report the first top-quarkmass measurement that uses a cross-section constraint to improve the mass determination. This measurement is made with a dilepton tt event candidate sample collected with the Collider Detector II at Fermilab. From a data sample corresponding to an integrated luminosity of 1.2fb-1, we measure a top-quarkmass of 170.7-3.9+4.2( stat)±2.6(syst) ±2.4(theory)GeV/c2. The measurement without the cross-section constraint is 169.7-4.9+5.2( stat)±3.1(syst)GeV/c2. © 2008 The American Physical Society.
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